<div>
  <ol>
    <li>After activating this snap tool, specify the first of the two points
    that define the middle point. For example one corner of a rectangle.</li>
    <li>Click the second of the two points, for example the diagonally opposite
    corner of the rectangle.</li>
  </ol>
  <br />
  <img src="SnapMiddleManualFigure.png" class="figure" />
</div>
